Aggregate Sampling Success, Streamlined Mobilization

Using solid stem augers under a conventional rig and assessing the clay extruded by the augers during their mine exploration phases, Wyo Ben Inc was concerned the accuracy of their aggregate sampling was not where it needed it to be. To achieve desired aggregate sampling integrity, they added a 3100GT for its direct push capabilities. The 3100GT has given them added confidence when sampling their bentonite pits.

“We always suspected stabbing was inaccurate due to discrepancy with assessment of material once in the plant,” Darin Henderson, manager, said. “We’re still doing both ways to compare the data, and so far the data when direct push coring is the same as seen in the plant.”

Using the 3100GT for direct push sampling provides a true mine exploration assessment of the material in the pit. They sample the pit on a 50-foot grid, using Geoprobe^® MC5 sample tubes and dividing the 60-inch sample into foot increments.

“We can better know what we’re getting into. The higher-quality material goes to oil wells. The lower-quality material goes to kitty litter,” Henderson said. “The mill will actually know what’s coming in to best service customers, so fewer customer complaints.”

Going with the truck-mounted 3100GT also allowed them to streamline their rig mobilization.

“Our operations are spread out with a lot of traveling on a daily basis, so a rig this size is easy to get down the road,” Mark Crumrine, driller, said. “The comfort and drivability of the truck compared to traditional rigs is a plus.”

Drillers also appreciate the switch to direct push versus solid stem augers.

“The percussion hammer versus augers is less wear and tear on the operator compared to throwing augers all day,” Crumrine said.